/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:18:06,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:18:06,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:18:06,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:18:07,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:18:07,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:18:07,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:18:07,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:18:07,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:18:07,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:18:07,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:18:07,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:18:07,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:18:07,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:18:07,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:18:07,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:18:07,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 00:18:07,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:18:07,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:18:07,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:18:07,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-14 00:18:07,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:18:07,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:18:07,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:18:07,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:18:07,079 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:18:07,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:18:07,080 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:18:07,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:18:07,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:18:07,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:18:07,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:18:07,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:18:07,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:18:07,081 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:18:07,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:18:07,081 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:18:07,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:18:07,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:18:07,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:18:07,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:18:07,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:18:07,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:18:07,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:18:07,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:18:07,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:18:07,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:18:07,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:18:07,083 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:18:07,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:18:07,101 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:18:07,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:18:07,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:18:07,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:18:07,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:18:07,373 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:18:07,373 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:18:07,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-07-14 00:18:07,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e35bb036/d832aec898a8443e8ece7c926892ce0c/FLAGc941263de [2021-07-14 00:18:07,824 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:18:07,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-07-14 00:18:07,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e35bb036/d832aec898a8443e8ece7c926892ce0c/FLAGc941263de [2021-07-14 00:18:08,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e35bb036/d832aec898a8443e8ece7c926892ce0c [2021-07-14 00:18:08,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:18:08,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:18:08,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:18:08,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:18:08,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:18:08,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcdc286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08, skipping insertion in model container [2021-07-14 00:18:08,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:18:08,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:18:08,359 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i[949,962] [2021-07-14 00:18:08,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:18:08,553 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:18:08,562 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i[949,962] [2021-07-14 00:18:08,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:18:08,642 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:18:08,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08 WrapperNode [2021-07-14 00:18:08,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:18:08,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:18:08,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:18:08,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:18:08,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:18:08,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:18:08,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:18:08,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:18:08,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... [2021-07-14 00:18:08,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:18:08,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:18:08,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:18:08,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:18:08,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:18:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:18:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:18:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:18:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:18:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:18:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:18:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:18:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:18:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:18:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:18:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:18:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:18:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:18:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:18:08,846 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:18:10,433 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:18:10,433 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-14 00:18:10,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:18:10 BoogieIcfgContainer [2021-07-14 00:18:10,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:18:10,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:18:10,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:18:10,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:18:10,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:18:08" (1/3) ... [2021-07-14 00:18:10,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f6be1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:18:10, skipping insertion in model container [2021-07-14 00:18:10,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:08" (2/3) ... [2021-07-14 00:18:10,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f6be1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:18:10, skipping insertion in model container [2021-07-14 00:18:10,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:18:10" (3/3) ... [2021-07-14 00:18:10,440 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_rmo.opt.i [2021-07-14 00:18:10,445 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:18:10,445 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:18:10,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-14 00:18:10,446 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:18:10,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,468 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,468 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:10,485 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:18:10,500 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-14 00:18:10,512 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:18:10,512 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:18:10,512 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:18:10,513 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:18:10,513 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:18:10,513 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:18:10,513 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:18:10,513 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:18:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 8606 states, 7521 states have (on average 2.226698577316846) internal successors, (16747), 8605 states have internal predecessors, (16747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:11,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-14 00:18:11,432 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:11,432 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:11,433 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:11,439 INFO L82 PathProgramCache]: Analyzing trace with hash -247046329, now seen corresponding path program 1 times [2021-07-14 00:18:11,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:11,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213163369] [2021-07-14 00:18:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:11,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:11,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:11,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:11,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:11,866 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:11,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:11,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:11,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:11,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:11,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:11,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:11,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:11,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:11,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:11,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213163369] [2021-07-14 00:18:11,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213163369] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:11,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:11,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:18:11,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088647628] [2021-07-14 00:18:11,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:18:11,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:11,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:18:11,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:18:11,929 INFO L87 Difference]: Start difference. First operand has 8606 states, 7521 states have (on average 2.226698577316846) internal successors, (16747), 8605 states have internal predecessors, (16747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:12,160 INFO L93 Difference]: Finished difference Result 9866 states and 19662 transitions. [2021-07-14 00:18:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:18:12,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-14 00:18:12,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:12,195 INFO L225 Difference]: With dead ends: 9866 [2021-07-14 00:18:12,195 INFO L226 Difference]: Without dead ends: 4338 [2021-07-14 00:18:12,196 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 106.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2021-07-14 00:18:12,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 4338. [2021-07-14 00:18:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4338 states, 4275 states have (on average 2.494970760233918) internal successors, (10666), 4337 states have internal predecessors, (10666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4338 states to 4338 states and 10666 transitions. [2021-07-14 00:18:12,458 INFO L78 Accepts]: Start accepts. Automaton has 4338 states and 10666 transitions. Word has length 66 [2021-07-14 00:18:12,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:12,460 INFO L482 AbstractCegarLoop]: Abstraction has 4338 states and 10666 transitions. [2021-07-14 00:18:12,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 4338 states and 10666 transitions. [2021-07-14 00:18:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-14 00:18:12,468 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:12,468 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:12,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:18:12,468 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:12,471 INFO L82 PathProgramCache]: Analyzing trace with hash -786711160, now seen corresponding path program 1 times [2021-07-14 00:18:12,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:12,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520908240] [2021-07-14 00:18:12,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:12,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:12,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:12,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:12,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:12,616 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:12,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:12,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:12,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:12,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:12,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:12,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:12,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:12,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:12,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520908240] [2021-07-14 00:18:12,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520908240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:12,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:12,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:18:12,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002876873] [2021-07-14 00:18:12,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:18:12,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:12,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:18:12,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:18:12,655 INFO L87 Difference]: Start difference. First operand 4338 states and 10666 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:12,780 INFO L93 Difference]: Finished difference Result 5138 states and 13122 transitions. [2021-07-14 00:18:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:18:12,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-07-14 00:18:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:12,798 INFO L225 Difference]: With dead ends: 5138 [2021-07-14 00:18:12,799 INFO L226 Difference]: Without dead ends: 4018 [2021-07-14 00:18:12,800 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 77.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:12,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2021-07-14 00:18:12,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 4018. [2021-07-14 00:18:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 3963 states have (on average 2.5011355034065104) internal successors, (9912), 4017 states have internal predecessors, (9912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 9912 transitions. [2021-07-14 00:18:12,909 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 9912 transitions. Word has length 68 [2021-07-14 00:18:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:12,910 INFO L482 AbstractCegarLoop]: Abstraction has 4018 states and 9912 transitions. [2021-07-14 00:18:12,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:12,915 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 9912 transitions. [2021-07-14 00:18:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-14 00:18:12,920 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:12,920 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:12,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:18:12,921 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:12,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:12,921 INFO L82 PathProgramCache]: Analyzing trace with hash -574665015, now seen corresponding path program 1 times [2021-07-14 00:18:12,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:12,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042382050] [2021-07-14 00:18:12,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:13,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:13,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:13,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:13,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:13,035 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-07-14 00:18:13,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-14 00:18:13,053 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:13,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:13,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:13,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:13,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:13,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042382050] [2021-07-14 00:18:13,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042382050] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:13,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:13,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-14 00:18:13,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879442206] [2021-07-14 00:18:13,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 00:18:13,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:13,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 00:18:13,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-07-14 00:18:13,086 INFO L87 Difference]: Start difference. First operand 4018 states and 9912 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:13,364 INFO L93 Difference]: Finished difference Result 4679 states and 12000 transitions. [2021-07-14 00:18:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 00:18:13,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-14 00:18:13,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:13,380 INFO L225 Difference]: With dead ends: 4679 [2021-07-14 00:18:13,380 INFO L226 Difference]: Without dead ends: 3963 [2021-07-14 00:18:13,381 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 185.4ms TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-07-14 00:18:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3963 states. [2021-07-14 00:18:13,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3963 to 3945. [2021-07-14 00:18:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3890 states have (on average 2.507712082262211) internal successors, (9755), 3944 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 9755 transitions. [2021-07-14 00:18:13,463 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 9755 transitions. Word has length 70 [2021-07-14 00:18:13,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:13,464 INFO L482 AbstractCegarLoop]: Abstraction has 3945 states and 9755 transitions. [2021-07-14 00:18:13,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 9755 transitions. [2021-07-14 00:18:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-14 00:18:13,472 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:13,472 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:13,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:18:13,473 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:13,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:13,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1896270039, now seen corresponding path program 1 times [2021-07-14 00:18:13,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:13,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347367462] [2021-07-14 00:18:13,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:13,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:13,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:13,567 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:13,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:13,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:13,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:13,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:13,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:13,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347367462] [2021-07-14 00:18:13,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347367462] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:13,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:13,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:18:13,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860883511] [2021-07-14 00:18:13,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:18:13,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:13,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:18:13,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:18:13,599 INFO L87 Difference]: Start difference. First operand 3945 states and 9755 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:13,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:13,717 INFO L93 Difference]: Finished difference Result 6345 states and 16549 transitions. [2021-07-14 00:18:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:18:13,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-14 00:18:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:13,733 INFO L225 Difference]: With dead ends: 6345 [2021-07-14 00:18:13,733 INFO L226 Difference]: Without dead ends: 4006 [2021-07-14 00:18:13,734 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 77.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4006 states. [2021-07-14 00:18:13,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4006 to 3356. [2021-07-14 00:18:13,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3311 states have (on average 2.493204469948656) internal successors, (8255), 3355 states have internal predecessors, (8255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:13,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8255 transitions. [2021-07-14 00:18:13,805 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8255 transitions. Word has length 71 [2021-07-14 00:18:13,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:13,806 INFO L482 AbstractCegarLoop]: Abstraction has 3356 states and 8255 transitions. [2021-07-14 00:18:13,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:13,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8255 transitions. [2021-07-14 00:18:13,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-14 00:18:13,810 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:13,810 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:13,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:18:13,811 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:13,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:13,811 INFO L82 PathProgramCache]: Analyzing trace with hash 251264449, now seen corresponding path program 1 times [2021-07-14 00:18:13,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:13,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784143365] [2021-07-14 00:18:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:13,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:13,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:13,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:13,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:13,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:18:13,895 INFO L142 QuantifierPusher]: treesize reduction 20, result has 79.6 percent of original size [2021-07-14 00:18:13,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-07-14 00:18:13,916 INFO L142 QuantifierPusher]: treesize reduction 37, result has 45.6 percent of original size [2021-07-14 00:18:13,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-14 00:18:13,933 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:13,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:13,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:13,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:13,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:13,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:13,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:13,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:13,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784143365] [2021-07-14 00:18:13,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784143365] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:13,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:13,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-14 00:18:13,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691401395] [2021-07-14 00:18:13,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 00:18:13,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:13,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 00:18:13,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:13,969 INFO L87 Difference]: Start difference. First operand 3356 states and 8255 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:14,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:14,243 INFO L93 Difference]: Finished difference Result 3858 states and 9723 transitions. [2021-07-14 00:18:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 00:18:14,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-14 00:18:14,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:14,266 INFO L225 Difference]: With dead ends: 3858 [2021-07-14 00:18:14,267 INFO L226 Difference]: Without dead ends: 3298 [2021-07-14 00:18:14,267 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 214.8ms TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-07-14 00:18:14,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2021-07-14 00:18:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 3200. [2021-07-14 00:18:14,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 3155 states have (on average 2.4890649762282093) internal successors, (7853), 3199 states have internal predecessors, (7853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 7853 transitions. [2021-07-14 00:18:14,329 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 7853 transitions. Word has length 71 [2021-07-14 00:18:14,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:14,330 INFO L482 AbstractCegarLoop]: Abstraction has 3200 states and 7853 transitions. [2021-07-14 00:18:14,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:14,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 7853 transitions. [2021-07-14 00:18:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-14 00:18:14,334 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:14,335 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:14,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:18:14,335 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1008733381, now seen corresponding path program 1 times [2021-07-14 00:18:14,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:14,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024688960] [2021-07-14 00:18:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:14,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:14,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:14,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:14,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:14,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:18:14,410 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-07-14 00:18:14,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-14 00:18:14,424 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:14,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:14,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:14,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:14,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:14,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:14,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024688960] [2021-07-14 00:18:14,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024688960] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:14,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:14,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-14 00:18:14,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323008088] [2021-07-14 00:18:14,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 00:18:14,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:14,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 00:18:14,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-07-14 00:18:14,455 INFO L87 Difference]: Start difference. First operand 3200 states and 7853 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:14,678 INFO L93 Difference]: Finished difference Result 3281 states and 8198 transitions. [2021-07-14 00:18:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 00:18:14,678 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-14 00:18:14,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:14,684 INFO L225 Difference]: With dead ends: 3281 [2021-07-14 00:18:14,684 INFO L226 Difference]: Without dead ends: 2570 [2021-07-14 00:18:14,685 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 118.7ms TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-07-14 00:18:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2021-07-14 00:18:14,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2570. [2021-07-14 00:18:14,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2540 states have (on average 2.4956692913385825) internal successors, (6339), 2569 states have internal predecessors, (6339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:14,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 6339 transitions. [2021-07-14 00:18:14,731 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 6339 transitions. Word has length 71 [2021-07-14 00:18:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:14,731 INFO L482 AbstractCegarLoop]: Abstraction has 2570 states and 6339 transitions. [2021-07-14 00:18:14,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:14,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 6339 transitions. [2021-07-14 00:18:14,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-07-14 00:18:14,738 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:14,738 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:14,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:18:14,739 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:14,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:14,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1275640263, now seen corresponding path program 1 times [2021-07-14 00:18:14,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:14,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536026611] [2021-07-14 00:18:14,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:14,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:14,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:14,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:14,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:14,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:18:14,816 INFO L142 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size [2021-07-14 00:18:14,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-14 00:18:14,835 INFO L142 QuantifierPusher]: treesize reduction 36, result has 72.1 percent of original size [2021-07-14 00:18:14,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-07-14 00:18:14,857 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:14,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:14,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:14,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:14,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:14,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:14,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:14,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536026611] [2021-07-14 00:18:14,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536026611] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:14,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:14,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-14 00:18:14,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824480150] [2021-07-14 00:18:14,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 00:18:14,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:14,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 00:18:14,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:14,899 INFO L87 Difference]: Start difference. First operand 2570 states and 6339 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:15,359 INFO L93 Difference]: Finished difference Result 3068 states and 7884 transitions. [2021-07-14 00:18:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 00:18:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-07-14 00:18:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:15,364 INFO L225 Difference]: With dead ends: 3068 [2021-07-14 00:18:15,364 INFO L226 Difference]: Without dead ends: 2588 [2021-07-14 00:18:15,365 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 279.7ms TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2021-07-14 00:18:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2021-07-14 00:18:15,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2588. [2021-07-14 00:18:15,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2588 states, 2558 states have (on average 2.4925723221266614) internal successors, (6376), 2587 states have internal predecessors, (6376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:15,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 6376 transitions. [2021-07-14 00:18:15,404 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 6376 transitions. Word has length 72 [2021-07-14 00:18:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:15,404 INFO L482 AbstractCegarLoop]: Abstraction has 2588 states and 6376 transitions. [2021-07-14 00:18:15,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 6376 transitions. [2021-07-14 00:18:15,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-07-14 00:18:15,408 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:15,408 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:15,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:18:15,408 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:15,408 INFO L82 PathProgramCache]: Analyzing trace with hash -686709, now seen corresponding path program 2 times [2021-07-14 00:18:15,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:15,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386442818] [2021-07-14 00:18:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:15,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:15,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:15,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:15,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:15,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:18:15,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-14 00:18:15,487 INFO L142 QuantifierPusher]: treesize reduction 37, result has 47.9 percent of original size [2021-07-14 00:18:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-14 00:18:15,507 INFO L142 QuantifierPusher]: treesize reduction 37, result has 47.9 percent of original size [2021-07-14 00:18:15,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-14 00:18:15,524 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:15,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:15,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:15,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:15,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:15,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:15,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:15,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386442818] [2021-07-14 00:18:15,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386442818] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:15,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:15,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-14 00:18:15,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569071099] [2021-07-14 00:18:15,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 00:18:15,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:15,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 00:18:15,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:18:15,558 INFO L87 Difference]: Start difference. First operand 2588 states and 6376 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:15,896 INFO L93 Difference]: Finished difference Result 3172 states and 8090 transitions. [2021-07-14 00:18:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 00:18:15,897 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-07-14 00:18:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:15,902 INFO L225 Difference]: With dead ends: 3172 [2021-07-14 00:18:15,902 INFO L226 Difference]: Without dead ends: 2660 [2021-07-14 00:18:15,902 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 246.3ms TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2021-07-14 00:18:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2021-07-14 00:18:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2624. [2021-07-14 00:18:15,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2594 states have (on average 2.474942174248265) internal successors, (6420), 2623 states have internal predecessors, (6420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 6420 transitions. [2021-07-14 00:18:15,951 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 6420 transitions. Word has length 72 [2021-07-14 00:18:15,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:15,952 INFO L482 AbstractCegarLoop]: Abstraction has 2624 states and 6420 transitions. [2021-07-14 00:18:15,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 6420 transitions. [2021-07-14 00:18:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-14 00:18:15,956 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:15,956 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:15,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 00:18:15,956 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:15,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:15,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1776153219, now seen corresponding path program 1 times [2021-07-14 00:18:15,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:15,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972018845] [2021-07-14 00:18:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:16,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:16,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:16,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:16,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:16,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:18:16,032 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-07-14 00:18:16,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-14 00:18:16,049 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-07-14 00:18:16,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-14 00:18:16,064 INFO L142 QuantifierPusher]: treesize reduction 31, result has 75.2 percent of original size [2021-07-14 00:18:16,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-07-14 00:18:16,074 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:16,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:16,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:16,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:16,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:16,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:16,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972018845] [2021-07-14 00:18:16,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972018845] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:16,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:16,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-14 00:18:16,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042194506] [2021-07-14 00:18:16,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 00:18:16,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:16,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 00:18:16,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:16,144 INFO L87 Difference]: Start difference. First operand 2624 states and 6420 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:16,323 INFO L93 Difference]: Finished difference Result 2960 states and 7432 transitions. [2021-07-14 00:18:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 00:18:16,333 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-14 00:18:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:16,339 INFO L225 Difference]: With dead ends: 2960 [2021-07-14 00:18:16,339 INFO L226 Difference]: Without dead ends: 2576 [2021-07-14 00:18:16,339 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 190.9ms TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-14 00:18:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2021-07-14 00:18:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2528. [2021-07-14 00:18:16,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2498 states have (on average 2.4611689351481183) internal successors, (6148), 2527 states have internal predecessors, (6148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:16,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 6148 transitions. [2021-07-14 00:18:16,391 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 6148 transitions. Word has length 73 [2021-07-14 00:18:16,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:16,391 INFO L482 AbstractCegarLoop]: Abstraction has 2528 states and 6148 transitions. [2021-07-14 00:18:16,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:16,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 6148 transitions. [2021-07-14 00:18:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-14 00:18:16,395 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:16,395 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:16,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 00:18:16,396 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:16,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:16,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1314583649, now seen corresponding path program 1 times [2021-07-14 00:18:16,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:16,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667181602] [2021-07-14 00:18:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:16,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:16,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:16,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:16,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:16,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:18:16,466 INFO L142 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-07-14 00:18:16,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-14 00:18:16,489 INFO L142 QuantifierPusher]: treesize reduction 52, result has 52.7 percent of original size [2021-07-14 00:18:16,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-14 00:18:16,517 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:16,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:16,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:16,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:16,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:16,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:16,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667181602] [2021-07-14 00:18:16,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667181602] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:16,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:16,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-14 00:18:16,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753136272] [2021-07-14 00:18:16,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 00:18:16,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:16,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 00:18:16,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:16,559 INFO L87 Difference]: Start difference. First operand 2528 states and 6148 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:16,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:16,913 INFO L93 Difference]: Finished difference Result 2980 states and 7499 transitions. [2021-07-14 00:18:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:18:16,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-14 00:18:16,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:16,920 INFO L225 Difference]: With dead ends: 2980 [2021-07-14 00:18:16,920 INFO L226 Difference]: Without dead ends: 2588 [2021-07-14 00:18:16,920 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 260.8ms TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-07-14 00:18:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2021-07-14 00:18:16,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2564. [2021-07-14 00:18:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2534 states have (on average 2.4640883977900554) internal successors, (6244), 2563 states have internal predecessors, (6244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6244 transitions. [2021-07-14 00:18:16,975 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6244 transitions. Word has length 73 [2021-07-14 00:18:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:16,975 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6244 transitions. [2021-07-14 00:18:16,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6244 transitions. [2021-07-14 00:18:16,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-14 00:18:16,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:16,979 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:16,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-14 00:18:16,979 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1470099741, now seen corresponding path program 2 times [2021-07-14 00:18:16,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:16,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761418673] [2021-07-14 00:18:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:17,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:17,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:17,044 INFO L142 QuantifierPusher]: treesize reduction 21, result has 73.1 percent of original size [2021-07-14 00:18:17,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-07-14 00:18:17,050 INFO L142 QuantifierPusher]: treesize reduction 21, result has 74.4 percent of original size [2021-07-14 00:18:17,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-14 00:18:17,072 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.3 percent of original size [2021-07-14 00:18:17,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-07-14 00:18:17,094 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:17,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:17,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:17,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:17,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:17,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:17,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761418673] [2021-07-14 00:18:17,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761418673] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:17,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:17,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-14 00:18:17,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649645531] [2021-07-14 00:18:17,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 00:18:17,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:17,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 00:18:17,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-07-14 00:18:17,133 INFO L87 Difference]: Start difference. First operand 2564 states and 6244 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:17,323 INFO L93 Difference]: Finished difference Result 3232 states and 8300 transitions. [2021-07-14 00:18:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:18:17,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-14 00:18:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:17,330 INFO L225 Difference]: With dead ends: 3232 [2021-07-14 00:18:17,330 INFO L226 Difference]: Without dead ends: 2872 [2021-07-14 00:18:17,330 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 109.9ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:18:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-07-14 00:18:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2558. [2021-07-14 00:18:17,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2528 states have (on average 2.460838607594937) internal successors, (6221), 2557 states have internal predecessors, (6221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 6221 transitions. [2021-07-14 00:18:17,374 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 6221 transitions. Word has length 73 [2021-07-14 00:18:17,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:17,374 INFO L482 AbstractCegarLoop]: Abstraction has 2558 states and 6221 transitions. [2021-07-14 00:18:17,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 6221 transitions. [2021-07-14 00:18:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-14 00:18:17,378 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:17,379 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:17,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-14 00:18:17,379 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:17,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:17,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1877480796, now seen corresponding path program 1 times [2021-07-14 00:18:17,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:17,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057538614] [2021-07-14 00:18:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:17,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:17,412 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:18:17,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:18:17,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:17,430 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:18:17,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:17,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:17,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:17,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057538614] [2021-07-14 00:18:17,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057538614] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:17,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:17,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:18:17,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941926832] [2021-07-14 00:18:17,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:18:17,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:17,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:18:17,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:18:17,439 INFO L87 Difference]: Start difference. First operand 2558 states and 6221 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:17,520 INFO L93 Difference]: Finished difference Result 3101 states and 7185 transitions. [2021-07-14 00:18:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:18:17,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-07-14 00:18:17,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:17,549 INFO L225 Difference]: With dead ends: 3101 [2021-07-14 00:18:17,549 INFO L226 Difference]: Without dead ends: 2093 [2021-07-14 00:18:17,549 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 65.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2021-07-14 00:18:17,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2093. [2021-07-14 00:18:17,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 2063 states have (on average 2.4474066892874453) internal successors, (5049), 2092 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 5049 transitions. [2021-07-14 00:18:17,579 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 5049 transitions. Word has length 74 [2021-07-14 00:18:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:17,579 INFO L482 AbstractCegarLoop]: Abstraction has 2093 states and 5049 transitions. [2021-07-14 00:18:17,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 5049 transitions. [2021-07-14 00:18:17,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-14 00:18:17,582 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:17,582 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:17,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-14 00:18:17,583 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:17,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:17,583 INFO L82 PathProgramCache]: Analyzing trace with hash 323220877, now seen corresponding path program 1 times [2021-07-14 00:18:17,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:17,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953676526] [2021-07-14 00:18:17,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:17,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:17,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:17,623 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:18:17,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:18:17,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:17,642 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:18:17,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:17,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:17,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:17,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953676526] [2021-07-14 00:18:17,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953676526] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:17,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:17,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:17,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846062610] [2021-07-14 00:18:17,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:17,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:17,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:17,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:17,651 INFO L87 Difference]: Start difference. First operand 2093 states and 5049 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:17,742 INFO L93 Difference]: Finished difference Result 1849 states and 4080 transitions. [2021-07-14 00:18:17,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:18:17,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-07-14 00:18:17,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:17,745 INFO L225 Difference]: With dead ends: 1849 [2021-07-14 00:18:17,745 INFO L226 Difference]: Without dead ends: 1090 [2021-07-14 00:18:17,745 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 76.5ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:18:17,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2021-07-14 00:18:17,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1086. [2021-07-14 00:18:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1062 states have (on average 2.2984934086629) internal successors, (2441), 1085 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 2441 transitions. [2021-07-14 00:18:17,759 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 2441 transitions. Word has length 75 [2021-07-14 00:18:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:17,760 INFO L482 AbstractCegarLoop]: Abstraction has 1086 states and 2441 transitions. [2021-07-14 00:18:17,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 2441 transitions. [2021-07-14 00:18:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-14 00:18:17,761 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:17,761 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:17,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-14 00:18:17,762 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:17,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:17,762 INFO L82 PathProgramCache]: Analyzing trace with hash 630309360, now seen corresponding path program 1 times [2021-07-14 00:18:17,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:17,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465425203] [2021-07-14 00:18:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:17,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:17,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:17,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:17,807 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:18:17,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:18:17,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:17,827 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:18:17,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:17,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:17,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:17,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:17,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:17,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465425203] [2021-07-14 00:18:17,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465425203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:17,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:17,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:18:17,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787608800] [2021-07-14 00:18:17,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:18:17,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:17,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:18:17,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:18:17,836 INFO L87 Difference]: Start difference. First operand 1086 states and 2441 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:17,942 INFO L93 Difference]: Finished difference Result 705 states and 1382 transitions. [2021-07-14 00:18:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:18:17,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-07-14 00:18:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:17,943 INFO L225 Difference]: With dead ends: 705 [2021-07-14 00:18:17,943 INFO L226 Difference]: Without dead ends: 349 [2021-07-14 00:18:17,943 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 90.2ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:18:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-07-14 00:18:17,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2021-07-14 00:18:17,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 340 states have (on average 1.861764705882353) internal successors, (633), 348 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 633 transitions. [2021-07-14 00:18:17,947 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 633 transitions. Word has length 77 [2021-07-14 00:18:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:17,948 INFO L482 AbstractCegarLoop]: Abstraction has 349 states and 633 transitions. [2021-07-14 00:18:17,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:17,948 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 633 transitions. [2021-07-14 00:18:17,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-14 00:18:17,948 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:17,949 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:17,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-14 00:18:17,949 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:17,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:17,949 INFO L82 PathProgramCache]: Analyzing trace with hash -889407853, now seen corresponding path program 1 times [2021-07-14 00:18:17,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:17,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683667634] [2021-07-14 00:18:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:18,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:18,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:18,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:18,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:18:18,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-14 00:18:18,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:18,043 INFO L142 QuantifierPusher]: treesize reduction 30, result has 58.9 percent of original size [2021-07-14 00:18:18,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-14 00:18:18,062 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:18,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:18,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:18,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:18,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:18,092 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:18,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683667634] [2021-07-14 00:18:18,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683667634] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:18,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:18,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-14 00:18:18,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832851744] [2021-07-14 00:18:18,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 00:18:18,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:18,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 00:18:18,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:18,093 INFO L87 Difference]: Start difference. First operand 349 states and 633 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:18,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:18,224 INFO L93 Difference]: Finished difference Result 499 states and 956 transitions. [2021-07-14 00:18:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:18:18,225 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-14 00:18:18,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:18,225 INFO L225 Difference]: With dead ends: 499 [2021-07-14 00:18:18,225 INFO L226 Difference]: Without dead ends: 320 [2021-07-14 00:18:18,226 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 117.8ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-07-14 00:18:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-07-14 00:18:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 301. [2021-07-14 00:18:18,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 292 states have (on average 1.8253424657534247) internal successors, (533), 300 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:18,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 533 transitions. [2021-07-14 00:18:18,230 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 533 transitions. Word has length 80 [2021-07-14 00:18:18,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:18,230 INFO L482 AbstractCegarLoop]: Abstraction has 301 states and 533 transitions. [2021-07-14 00:18:18,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:18,230 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 533 transitions. [2021-07-14 00:18:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-14 00:18:18,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:18,231 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:18,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-14 00:18:18,231 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:18,231 INFO L82 PathProgramCache]: Analyzing trace with hash 302909075, now seen corresponding path program 2 times [2021-07-14 00:18:18,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:18,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745352164] [2021-07-14 00:18:18,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:18,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:18,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:18,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:18,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-14 00:18:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-14 00:18:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-14 00:18:18,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-14 00:18:18,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-14 00:18:18,356 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.7 percent of original size [2021-07-14 00:18:18,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-14 00:18:18,376 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:18,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:18,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:18,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:18,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:18,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:18:18,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:18,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745352164] [2021-07-14 00:18:18,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745352164] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:18,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:18,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-14 00:18:18,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347327256] [2021-07-14 00:18:18,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 00:18:18,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:18,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 00:18:18,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:18:18,411 INFO L87 Difference]: Start difference. First operand 301 states and 533 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:18,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:18,560 INFO L93 Difference]: Finished difference Result 447 states and 845 transitions. [2021-07-14 00:18:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:18:18,560 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-14 00:18:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:18,561 INFO L225 Difference]: With dead ends: 447 [2021-07-14 00:18:18,561 INFO L226 Difference]: Without dead ends: 280 [2021-07-14 00:18:18,561 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 162.3ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-07-14 00:18:18,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-07-14 00:18:18,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 273. [2021-07-14 00:18:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 264 states have (on average 1.8371212121212122) internal successors, (485), 272 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 485 transitions. [2021-07-14 00:18:18,565 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 485 transitions. Word has length 80 [2021-07-14 00:18:18,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:18,565 INFO L482 AbstractCegarLoop]: Abstraction has 273 states and 485 transitions. [2021-07-14 00:18:18,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 485 transitions. [2021-07-14 00:18:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-14 00:18:18,566 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:18,566 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:18,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-14 00:18:18,566 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:18,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:18,566 INFO L82 PathProgramCache]: Analyzing trace with hash -687229293, now seen corresponding path program 3 times [2021-07-14 00:18:18,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:18,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012895416] [2021-07-14 00:18:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 00:18:18,599 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 00:18:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-14 00:18:18,625 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-14 00:18:18,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-14 00:18:18,651 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-14 00:18:18,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-14 00:18:18,652 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2021-07-14 00:18:18,653 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:18:18,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:18:18 BasicIcfg [2021-07-14 00:18:18,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:18:18,726 INFO L168 Benchmark]: Toolchain (without parser) took 10545.59 ms. Allocated memory was 202.4 MB in the beginning and 665.8 MB in the end (delta: 463.5 MB). Free memory was 165.5 MB in the beginning and 213.9 MB in the end (delta: -48.4 MB). Peak memory consumption was 416.2 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:18,726 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 202.4 MB. Free memory is still 183.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:18:18,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.71 ms. Allocated memory is still 202.4 MB. Free memory was 165.3 MB in the beginning and 172.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:18,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.40 ms. Allocated memory is still 202.4 MB. Free memory was 172.5 MB in the beginning and 169.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:18,726 INFO L168 Benchmark]: Boogie Preprocessor took 50.88 ms. Allocated memory is still 202.4 MB. Free memory was 169.4 MB in the beginning and 167.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:18,726 INFO L168 Benchmark]: RCFGBuilder took 1676.30 ms. Allocated memory was 202.4 MB in the beginning and 293.6 MB in the end (delta: 91.2 MB). Free memory was 167.3 MB in the beginning and 179.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 81.5 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:18,726 INFO L168 Benchmark]: TraceAbstraction took 8289.12 ms. Allocated memory was 293.6 MB in the beginning and 665.8 MB in the end (delta: 372.2 MB). Free memory was 179.1 MB in the beginning and 213.9 MB in the end (delta: -34.9 MB). Peak memory consumption was 337.4 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:18,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 202.4 MB. Free memory is still 183.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 461.71 ms. Allocated memory is still 202.4 MB. Free memory was 165.3 MB in the beginning and 172.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 62.40 ms. Allocated memory is still 202.4 MB. Free memory was 172.5 MB in the beginning and 169.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.88 ms. Allocated memory is still 202.4 MB. Free memory was 169.4 MB in the beginning and 167.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1676.30 ms. Allocated memory was 202.4 MB in the beginning and 293.6 MB in the end (delta: 91.2 MB). Free memory was 167.3 MB in the beginning and 179.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 81.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8289.12 ms. Allocated memory was 293.6 MB in the beginning and 665.8 MB in the end (delta: 372.2 MB). Free memory was 179.1 MB in the beginning and 213.9 MB in the end (delta: -34.9 MB). Peak memory consumption was 337.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31556, positive: 29000, positive conditional: 29000, positive unconditional: 0, negative: 2556, negative conditional: 2556, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31097, positive: 29000, positive conditional: 0, positive unconditional: 29000, negative: 2097, negative conditional: 0, negative unconditional: 2097, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 812, positive: 769, positive conditional: 0, positive unconditional: 769, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 812, positive: 766, positive conditional: 0, positive unconditional: 766, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 448, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 444, negative conditional: 0, negative unconditional: 444, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31097, positive: 28231, positive conditional: 0, positive unconditional: 28231, negative: 2054, negative conditional: 0, negative unconditional: 2054, unknown: 812, unknown conditional: 0, unknown unconditional: 812] , Statistics on independence cache: Total cache size (in pairs): 812, Positive cache size: 769, Positive conditional cache size: 0, Positive unconditional cache size: 769, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Independence queries for same thread: 459 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L712] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L713] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L715] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L717] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L718] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L719] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L720] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L721] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L722] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L723] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L724] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L725] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L726] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L727] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L728] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L729] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L730] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L731] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L732] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L733] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L734] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L735] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L813] 0 pthread_t t2192; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L814] FCALL, FORK 0 pthread_create(&t2192, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2193; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L816] FCALL, FORK 0 pthread_create(&t2193, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L817] 0 pthread_t t2194; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L818] FCALL, FORK 0 pthread_create(&t2194, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 3 __unbuffered_p2_EAX = x VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L788] 3 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8141.2ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 102.9ms, AutomataDifference: 3564.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 875.3ms, PartialOrderReductionTime: 864.6ms, HoareTripleCheckerStatistics: 1861 SDtfs, 2704 SDslu, 7422 SDs, 0 SdLazy, 1417 SolverSat, 239 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1240.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 2381.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8606occurred in iteration=0, InterpolantAutomatonStates: 185, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 916.3ms AutomataMinimizationTime, 16 MinimizatonAttempts, 1218 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 69.8ms SsaConstructionTime, 543.7ms SatisfiabilityAnalysisTime, 1818.1ms InterpolantComputationTime, 1246 NumberOfCodeBlocks, 1246 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1150 ConstructedInterpolants, 0 QuantifiedInterpolants, 7323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...